Journal of the Franklin Institute, Band 313 Pergamon Press, 1982 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59. |
Journal of the Franklin Institute, Band 313Pergamon Press, 1982 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-59. |